Inventories

9 Months Ended

Sep. 30, 2023

Inventories consisted of the following:


(In thousands)	September 30, 2023		December 31, 2022
Raw materials:
Fluids Systems	$	107,152	$	110,623
Industrial Solutions	4,304		3,966
Total raw materials	111,456		114,589
Blended fluids systems components	19,655		29,244
Finished goods - mats	12,141		5,738
Total inventories	$	143,252	$	149,571

Raw materials for the Fluids Systems segment consist primarily of chemicals and other additives that are consumed in the production of our fluids systems. Raw materials for the Industrial Solutions segment consist primarily of resins, chemicals, and other materials used to manufacture composite mats, as well as materials that are consumed in providing spill containment and other services to our customers. Our blended fluids systems components consist of base fluids systems that have been either mixed internally at our blending facilities or purchased from third-party vendors. These base fluids systems require raw materials to be added, as needed to meet specified customer requirements.

The Fluids Systems segment operating results for the first nine months of 2023 includes $2.6 million of total charges for inventory write-downs (as described in Note 11). The Fluids Systems segment operating results for the first nine months of 2022 included $8.0 million of total charges for inventory write-downs, primarily attributable to the reduction in carrying values of certain inventory related to the exit of our Gulf of Mexico operations to their net realizable value.